In the western species, the crown is more scraggly and hair-like, the chest is a uniform blue-gray and not maroon and there is a less distinct wing-bar.
As large-sized file transfer problems became less severe, warez became more widespread and began to affect large software files like animations and movies.
The opponent is compelled to move the more valuable piece to avoid its capture, thereby exposing the less valuable piece which can then be captured (see chess piece relative value).